GB1070733A - Process for liberating nitrogen,in the form of ammonia, from solids or liquids, containing bound nitrogen - Google Patents

Process for liberating nitrogen,in the form of ammonia, from solids or liquids, containing bound nitrogen

Info

Publication number
GB1070733A
GB1070733A GB38649/64A GB3864964A GB1070733A GB 1070733 A GB1070733 A GB 1070733A GB 38649/64 A GB38649/64 A GB 38649/64A GB 3864964 A GB3864964 A GB 3864964A GB 1070733 A GB1070733 A GB 1070733A
Authority
GB
United Kingdom
Prior art keywords
nitrogen
alloy
devarda
water
reaction
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB38649/64A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Stamicarbon BV
Original Assignee
Stamicarbon BV
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Stamicarbon BV filed Critical Stamicarbon BV
Publication of GB1070733A publication Critical patent/GB1070733A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N31/00—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods
    • G01N31/002—Determining nitrogen by transformation into ammonia, e.g. KJELDAHL method
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67C—CLEANING, FILLING WITH LIQUIDS OR SEMILIQUIDS, OR EMPTYING, OF BOTTLES, JARS, CANS, CASKS, BARRELS, OR SIMILAR CONTAINERS, NOT OTHERWISE PROVIDED FOR; FUNNELS
    • B67C3/00—Bottling liquids or semiliquids; Filling jars or cans with liquids or semiliquids using bottling or like apparatus; Filling casks or barrels with liquids or semiliquids
    • B67C3/02—Bottling liquids or semiliquids; Filling jars or cans with liquids or semiliquids using bottling or like apparatus
    • B67C3/06—Bottling liquids or semiliquids; Filling jars or cans with liquids or semiliquids using bottling or like apparatus using counterpressure, i.e. filling while the container is under pressure
    • B67C3/12—Pressure-control devices
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N31/00—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods
    • G01N31/16—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods using titration
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T436/00—Chemistry: analytical and immunological testing
    • Y10T436/17—Nitrogen containing
    • Y10T436/176152—Total nitrogen determined

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Molecular Biology (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)

Abstract

Nitrogen, in the form of ammonia, is liberated from solid or liquid material in which nitrogen is bound as ammonium, urea, nitrate or nitrite by a process involving the reduction of the material or part thereof in alkaline solution by means of a Devarda alloy and/or the reaction of the material or part thereof with an alkali metal hydroxide or carbonate, wherein the reaction when using Devarda alloy is performed in an amount of water not more than 5 times the weight of Devarda alloy plus sample on a water-free basis, or when using alkali metal hydroxide or carbonate in the absence of Devarda alloy, is performed in an amount of water not more than 40 times the weight of the sample on a water-free basis, and the ammonia evolved is expelled from the reaction vessel with the aid of a stream of inert gas via a mist trap maintained at a temperature exceeding 100 DEG C. All nitrogen present in the material may be liberated by reaction with Devarda's alloy and alkali preferably preheated to 40 DEG C., the heat needed being derived from the reaction of alkali and alloy. The material may be treated with an oxidant (e.g. sodium hypobromite) in the presence of NaOH or NaHCO3 to remove nitrogen bound to hydrogen (i.e. NH4 + and urea), the excess hypobromite removed by treatment with sodium sulphide and the residual material treated with Devarda's alloy to liberate nitrate- and nitrite-bound nitrogen. The ammonia liberated may be absorbed in water or acid and then titrated, thereby estimating the nitrogen content of the material.
GB38649/64A 1963-09-23 1964-09-22 Process for liberating nitrogen,in the form of ammonia, from solids or liquids, containing bound nitrogen Expired GB1070733A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL298225 1963-09-23
NL300958 1963-11-25

Publications (1)

Publication Number Publication Date
GB1070733A true GB1070733A (en) 1967-06-01

Family

ID=26641933

Family Applications (1)

Application Number Title Priority Date Filing Date
GB38649/64A Expired GB1070733A (en) 1963-09-23 1964-09-22 Process for liberating nitrogen,in the form of ammonia, from solids or liquids, containing bound nitrogen

Country Status (6)

Country Link
US (1) US3363990A (en)
BE (1) BE653405A (en)
CH (1) CH486697A (en)
DE (1) DE1282998B (en)
GB (1) GB1070733A (en)
NL (3) NL298225A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4311597A (en) * 1979-02-21 1982-01-19 Republic Steel Corporation Method and apparatus for treatment of wastewater

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3842068A1 (en) * 1988-12-14 1990-06-21 Buehler Edmund Gmbh & Co Method and apparatus for determining the ammonium nitrogen content in aqueous systems
US4929314A (en) * 1989-07-07 1990-05-29 The Dow Chemical Company Coulometric titrator apparatus and method
SE508220C2 (en) * 1997-01-29 1998-09-14 Foss Tecator Ab Procedure for determining nitrogen according to Kjeldahl
AU2006318645B2 (en) * 2005-11-21 2010-05-27 Shell Internationale Research Maatschappij B.V. Method for monitoring fluid properties
CA2979678A1 (en) 2015-04-20 2016-10-27 Halliburton Energy Services, Inc. Methods for quantifying nitrogen-containing compounds in subterranean treatment fluids
CN110201623A (en) * 2019-07-03 2019-09-06 北京东方安杰科技有限公司 A kind of quick oxidation unit of ammonia nitrogen and the quick method for oxidation of ammonia nitrogen
CN111413453A (en) * 2020-05-25 2020-07-14 福建春达化工有限公司 Plasticizer production wastewater total nitrogen test method
CN113820445B (en) * 2020-06-18 2023-11-14 宝山钢铁股份有限公司 Method for detecting concentration of cold rolling circulation leveling liquid

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3186800A (en) * 1961-02-27 1965-06-01 Beckman Instruments Inc Automatic titrator
US3174829A (en) * 1961-08-25 1965-03-23 Evan L R Stokstad Apparatus for kjeldahl nitrogen determination

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4311597A (en) * 1979-02-21 1982-01-19 Republic Steel Corporation Method and apparatus for treatment of wastewater

Also Published As

Publication number Publication date
DE1282998B (en) 1968-11-14
US3363990A (en) 1968-01-16
CH486697A (en) 1970-02-28
NL133962C (en)
NL300958A (en)
BE653405A (en) 1965-03-22
NL298225A (en)

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